DE2204357C3 - Device for the intermittent conveying of webs to be printed with horizontal line perforations, in particular in the case of continuous forms, in rotary printing machines for variable formats - Google Patents

Description

heads (27, 28) in the direction of travel behind an aisle takes place, while at the same time the g

Perforating device (21) are arranged, the device of _{which is at a standstill and carries out a movement m} distance from one another at least one time in the opposite direction ^ «is that of a format length (L), this printing process being carried out and the main preferred value by means of a creation tool (46 ) via one direction the printed paper web on the first servomotor (39) is remotely adjusted so that the length from the supply loop follows, produced by the perforating device (21).

Cross-line perforations (52) as they pass by a crank mechanism and wahgang under the probe heads (27, 28) as the For- ™> rend <* es the passage of the paper web as long as the post-mat length (L) -limiting markings are detected until the format length corresponds to the print image and are bar that the probe heads (28, 27) hums by means of measuring approximately previously printed markings, lines (41, 42) with a controller (43) for In a device according to the German interpretation

Keeping constant the set format length geschrift 1279 438 the web runs in a (L) are connected, and that the regulator (43) with- a ₅ verander for a scale hch adjustable means of control lines (45) with a second manipulated loop through a high adjustable roller runs, motor (26) for adjusting the Hauptvorzugsein- whose height adjustment construction by means of a hand crank (4) to format length (L) in conjunction follows the best between two Abtastvornchtungen _ste h _t immediate format length can be read off with reference to a scale.

2. Device according to claim 1, characterized in that the first (27) on the zero marking (30) of the two probes (27, matlengths takes place by means of a mechanical arrangement 28). which acts on the tension of the web, a length scale (29) is aligned and for this purpose a remote-controlled motor is available, the the second (28) on an adjusting part of a Lan- controls an air pressure regulating valve which acts on a pneumatic adjusting device (34, 35, 37, 38, 39) an- 35 matic cylinder whose piston rod has a ordered and with this on the desired shape the variable tension causing cylinder m length (L) on the skaia (33) of the length gauge. By comparing the format length on the Rod (29) is adjustable. Print material with a theoretical format length

3. Device according to claim 2, characterized in that the first forme cylinder is to be indicated below that the second probe head (28) can be controlled with the processing machine in such a way that the a machining process that is guided in the longitudinal direction and not followed by rotation in register Baren adjusting nut (34) is firmly connected, which is with the print image.

its internal thread on a rotatable This device does not work

and axially immovable thread.

spindle (35) screws, and that the adjusting nut 45 The invention is based on the object (34) to find a line mark (29) directed against the scale (33) of the length of a generic device as an index regulation for adjustable format lengths, (40) is provided. in the case of the previously printed

4. Device according to claims 1 and 2, markings on the paper web are dispensed with characterized in that the main preference can be 50.

direction (4), the length adjustment device (34, according to the invention this task is thereby

35, 37, 38, 39) and the perforating device (21) releases that two probe heads behind in the direction of web travel have similar servomotors (25, 26, 39), a perforating device are arranged, the the distance from each other via further control lines (44, 47, 48, 49) is at least the simple one with the controller (43) and with the setting mechanism 55 format length, this distance by means of (46) are connected. a setting mechanism remotely via a first servomotor

it is adjustable that the cross-line perforations produced by the perforating device. her

Passing under the probes as the format

60 length-limiting markings are detectable that the probes by means of test leads with a controller

The invention relates to a device for keeping the set format length constant are connected to the intermittent conveying of to be printed, and that the controller by means of control tracks with horizontal line perforations, in particular lines with a second servomotor for setting continuous forms, in rotary machines for 65 ment of the main preferred device on format length in changeable formats with at least one printing connection.

factory, with an equalizing carriage and one on the

Format length adjustable main feed mechanism. men is that in the perforating

the end,

constantly acting and through the pipeline 18 supplied hydraulic fluid causes. The control cam 15 makes one rotation each for the paper advance of a format length. She is continuous through the Drive shaft 19 driven in rotation. The drive shaft is with the printing mechanism through the shaft train in connection. Both are in a 1: 1 ratio rotationally driven. .

This eliminates any errors. The main preferred device 4 below is the

lro · n \ attachment of previously imprinted perforating device 21 arranged. Between at- ^> on the paper web are possible. one of the perforating devices is located

fcrungen a ". _is appropriate the first ordered longitudinal register adjustment device 22, whose

Kkieruna a length scale from register roller 23 via a spindle gear 24 with ltakieru adjustment part of a servomotor 25 is connected. Em second

and is arranged with, ₅ servomotor 26 drives on the adjusting nut 14 of the ld Skl main preferred device 4 and is used for adjustment

_{the ratation printing machine} to a desired format length, compliance with which is monitored and em-

Querstrichperforierungen at will in variations on the eingeänee _na chgeregelt. The OF INVENTION means further is characterized SSI gr ° ^SSE simplicity and Ge _{of the} p _he f _o turing and end Formutlänge to the orierungen self-monitored and a result, any errors will be off n \ Abri orher printed

arranged and is with format length on the scale

iÄdLTSSte probe head with an in S ^ led and non-rotatable Stellverbunden, which is regulated with its internal thread ao.

Sbb nd axially immovable To the K

in Facility

is gregelt with her. . _R .. _Hiöh

and axially immovable Two scales belong to the control unit

^ 3 screws, whereby the adjustable probe heads 27, 28 are

gegei te scale of Längenmaßsta- tion behind the perforator disposed sjnd

Line mark is provided as an index. and their distance from each other at least misemes

The design of the * ₅ form length L according to the invention is. To ^d f ^esen j! ^^. AusDuau g _un ^ ^ _{County ßstab 29 mt emer} zero mark

"^" ^ the perforating device on which the first probe head 27 with sememInto have stnmotoren, which is permanently set via. The yardstick is on. «" "" "F Servomotors, machine frame 32 parallel to the paper web

mmäm befe

Embodiment described.

_{rotatable and}

Parts of a

is adjustable.

S £ WC1 l / iuvivw .....

Pressure-free space is available in which the to be produced Cross-line perforation is placed.

Coming from the printing units (not shown), the paper web 1 runs through the compensating carriage (also not shown) and from there arrives at the main feed device 4 between the main feed roller 8 and the counter-pressure roller.The main feed device is intermittently moved by the rack 10 and the pinion 11 in the direction of the feed according to arrow 12 emotional. The format length L is determined by a stop 13, an adjusting nut 14 and a control cam 15, against which a roller 16 of the rack 10 rests. The start-up pressure is set by an on the piston

LKXl ivv (i> it.u »v .., __,

set hormauange ^ connected, in turn by means of control lines 45 with the second servomotor 26 for setting the main advance mechanism 4 is connected to the format length L. In addition, the controller 43 is available by means of control lines 44 with the servomotor 25 of the longitudinal register adjustment device 22 in connection.

The main preferred device 4, the length adjustment device 34, 35 belonging to the control unit 50, 37, 38, 39 and the perforating device 21 or its longitudinal register adjustment device 22 have similar servomotors 25, 26, 39, which are connected to the regulator via additional control lines 44, 47, 48, 49

Change Ier43 as well as with the setting mechanism 46 for input by small differences in length. The front format length are connected, rapid deviation is shown in Fig.2 with + AL and the

The perforating device 21 works rotatively with a lagging deviation denoted by —AL,

a single perforating tool 51, which the transverse These possible deviations are constant-

line perforations 52 (FIG. 2) produces. This maintenance of the set format length in the controller

Cross-line perforations are adjusted to zero by the detection circle of the control unit. Et-

systems of the two probes 27 and 28 differing length differences correspond to time differences

and are, as they pass, among those who are touched by the sensing systems

Probe heads registered as markers 27 and 28 delimiting the format length L and in the controller 43 in

markings detectable. OK control pulses for servomotors 26 and 25 vice versa

The control unit 50 is converted into an auxiliary feed unit 53 and thereby the format setting

correct with two rotationally driven rollers 54 and 55 to the target value, which is determined by means of the

wired. The rotary drive of these rollers takes place adjusting device on the precision measuring scale 33 of the

The main preferred scale 29 is set synchronously with the rollers 8 and 9. The setting of the

device 4 by means of the shaft 56. 15 second probe head 28 is carried out automatically by the

The description of the mode of operation is given in the fol-

are essentially based on that of the control test. If, on the other hand, the setting is made manually

device 50 is limited, since the function of the rotor, the precision measuring scale 33 is used for setting

Taü'onsdruckmaschine known as such is the probe head 28.

The respective format length is common for the ao. With a new format length setting by means of the main feed device 4, the perforating device of the setting mechanism 46, the main setting mechanism 21 and the control mechanism 50 on the setting mechanism 46 are set in the direction 21 by the servomotor 25 of the length registers. Two successive cross-bar adjustment devices 22 and the control unit 50 perforations 52 each enclose a format length by the servomotor 39 at the same time and by ge L. During operation, the same format length amounts can be adjusted to the new format length due to external influences

1 sheet of drawings

Claims (1)

With this generic term, the invention takes on patent claims: £ ΑΑΑΪ S & 1. Device for batch-wise conveying of the train to be printed over The webs to be printed have a cross-line perforation especially in the case of continuous forms, put in a supply loop The webs to be printed have a cross-line perforation jJ ^ SS ^ information, especially in the case of continuous forms, is put in a supply loop τι 1. λ. j t f ·· j ι · »». ~ EV., Ratcerhieife QUrCIl clllc aPSalfcWClbC tu L (Cl ICIlUC